Ways that represent administrative boundaries (relations) should not be shared with the ways that represent the river, landuse, leisure, etc.
Keep in mind that, in the future, when we will have aerial photographs of higher resolution, it will be necessary to improve the ways of the above entities, each independently.
Currently, in order to correct it, just make parralel copies of ways and tag each of them respectively. (Shift+P in JOSM)
As an example, the Lalitpur District relation (4583253) with its subareas subordinate may serve to find these errors:
https://www.openstreetmap.org/relation/4583253 Relation: Lalitpur(4583253)